As of December 31, 1950, the following quantities of hoppers were rostered in North America, according to the Official Railway Equipment Register (ORER). These "Top 20" owners represented 80 percent of the total.
| Railroad | Hopper Cars | Models1 | |
| PRR | 80,809 | Bowser | |
| C&O | 52,145 | InterMountain Walthers |
|
| B&O | 47,887 | Broadway Limited Imports InterMountain Walthers |
|
| NYC | 42,008 | ||
| N&W | 41,252 | ||
| L&N | 34,831 | Walthers | |
| IC | 21,727 | Walthers | |
| RDG | 17,115 | ||
| VGN | 13,962 | ||
| SOU | 13,615 | Walthers | |
| DM&IR | 13,084 | ||
| MP Lines | 11,652 | ||
| P&LE | 10,910 | ||
| WM | 9,603 | Walthers | |
| B&LE | 9,378 | ||
| CB&Q | 9,177 | ||
| NKP | 9,033 | InterMountain | |
| GN | 9,016 | ||
| Erie | 8,613 | InterMountain | |
| CNJ & CRP | 7,117 | ||
| 1Does not reflect "Craftsman" level models, which are available for almost any road. Such models are offered by Funaro & Camerlengo, Westerfield Models, and Sunshine. |
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